CMC-MX Low Voltage Built-in Bypass Soft Starter

CMC-MX series motor soft starter is a new type of motor starting and protection device that combines power electronic technology, microprocessor and automatic control.

✔ Smooth start/stop of the motor without steps;

✔ Avoid mechanical and electrical shocks caused by traditional starting methods;

✔ Reduce the starting current and power distribution capacity;

✔ Internal integrated current transformer and bypass contactor.

CMC-MX QUICK REFERENCE GUIDE.pdf

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Model: CMC-MX_Built-in Bypass Type
Supply Voltage: 3 phase AC380V
Applicable motor: Ordinary squirrel cage AC asynchronous motor
Motor Power: 7.5 ~ 280 kW
Application: General-purpose loads, such as pumps, fans, compressors, etc.

Features of CMC-MX Bypass Soft Starter

1. Various starting methods

Users can select current limit start, voltage ramp start, and can apply programmable kick start and start current limit in each mode to meet the needs of the site and achieve a good starting effect.

2. High Reliability

The microprocessor digitally processes the signals in the control system, avoiding the excessive adjustment of the analog circuit in the past, so as to obtain good accuracy and execution speed.

3. Powerful Anti-interference Performance

All external control signals are optically isolated, and different anti-noise levels are set to adapt to use in industrial environments.

4. Easy Adjustment

The control system has a wide range of applications, the mode adjustment is simple and easy to observe, and various functional options can be used to match various control objects.

5. Optimized Structure

The compact internal structure design is particularly convenient for users to integrate into the existing system, saving the cost of current transformers and bypass contactors for users.

6. Self-adaption of power frequency

Power frequency 50/60Hz adaptive function, convenient for users.

7. Analog output

4-20mA current output function, user-friendly.

8. Advanced MODBUS-RTU Communication function

During network communication, 32 devices can be connected. Users can achieve the purpose of automatic communication by setting the baud rate and communication address. The communication address setting range is 1-32, and the factory default value is 1. The communication baud rate setting range is: 0, 2400; 1, 4800; 2, 9600; 3, 19200; the factory value is 2 (9600).

9. Perfect protection

A variety of motor protection functions (such as overcurrent, input and output phase loss, thyristor short circuit, overheat protection, leakage detection, electronic thermal overload, internal contactor fault, phase current imbalance, etc.) not be damaged.

10. Easy Maintenance

The monitoring signal coding system composed of 4-digit digital display monitors the working conditions of the system equipment 24 hours a day, and provides fast fault diagnosis at the same time.

Technical Parameters of CMC-MX Bypass Soft Starter

Control power	AC110V--220V±15%, 50/60Hz
Main power	AC380V±15%
Rated current	18A--500A, 17 rated values in total
Applicable motor	Ordinary squirrel cage AC asynchronous motor
Start ramp mode	Voltage ramp start and current ramp start
Stop mode	Free stop and soft stop
Logical input	Impedance 1.8 KΩ, power supply +24V
Start frequency	Frequent or infrequent start available, start is advised not to exceed 10 times each other
Protective function	Phase failure, overcurrent, short circuit, SCR protection, overheat, phase current unbalance, wiring and inner fault
Protection level	IP00, IP20
Cooling type	Natural cooling or forced air cooling
Installation type	Wall-mounted
Environmental condition	When sea altitude is above 2,000m, soft starter should be derated for use. Ambient temperature: -25-+45°C Relative humidity: less than 95%(20°C±5°C) Free of flammable, explosive and corrosive gas or conductive dust. Good ventilation for indoor installation and vibration is less than 0.5G

Model Selection of CMC-MX Bypass Soft Starter

soft starter bypass-XiChiElectric

Item	Rated Current (A)	380V
Item	Rated Current (A)	Adapted Power (kW)	Dimensions(mm) & Gross Weight(kg)
1	18	7.5	173275192 6.3kg
2	24	11
3	30	15
4	39	18.5
5	45	22
6	60	30
7	76	37
8	90	45
9	110	55
10	150	75	285450305 25kg
11	180	90
12	218	110
13	260	132
14	320	160
15	370	185	320523330 31.5kg
16	440	220
17	500	250
18	560	280

Dimension of CMC-MX Bypass Soft Starter(unit: mm, 380V)


55kW and below	75kW - 160kW	185kW - 280kW

Model	G	H	I	K	L	M	E	D	A/B/C
CMC-008-55	173	275	192	133	250	7	90	86	50
CMC-075-160	285	450	305	230	390	9	170	158	50
CMC-185-280	320	523	330	270	415	9	195	158	50

How to order low voltage Motor Soft Starter

When placing an order, please inform the supplier of the product model, specifications, load conditions and conditions of use in order to select the product correctly.
The standard configuration of the soft starter includes a current transformer, and users do not need to connect an external current transformer.
For users who have special requirements for this product, please explain to the supplier when ordering, and we will provide perfect services.